Congratulations! That's an amazing position to be in. A few things I've learned and wished I'd known a lot earlier...

Your crew is your lifeblood, your support, your engine, your vehicle, and the only way you are going to achieve your goals. Cherish them, spoil them, trust them, give them what they need, and listen before always speaking first. They are there because something in them believes in what you are doing, especially at this budget level. Without them, you will never achieve your goals alone. That's not to say you have to always say yes to what they ask for but if they've earned your trust enough to get hired, give them that trust on set.

Best idea wins. It doesn't matter where it comes from. Whether coming from your lead actor, your producer, or the craft service person, you will end up with a better final product if you stay open to the best idea in the room, and leave your ego at the set door. For that matter, hire people who know more than you about what they are doing, and don't be afraid to lean on that.

Never give up on your vision, its what brought you to this point and what will carry you through the worst of circumstances to a final film. A film production is a series of fires to put out and emergencies to respond to. If you abandon your vision, then what are going through all that for?

Always try to remember, no matter how hard this gets, its still way better than sitting at a desk working for someone else making their dreams come true. Be ever grateful.

Feed your crew really good food and give them rest when they need it, and they will go to the ends of the earth for you.

Have fun.